JP2008093224A - Disposable absorbent product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable diaper capable of corresponding to various body shapes of users without limiting the engaging position of a tape fastener during wearing. <P>SOLUTION: The tape fastener 16 is provided at a dorsal waist part 6. The tape fastener 16 can be engaged to a back sheet 4 of a ventral waist part 8. A hook member 17 of the lower tape fastener 16 can be engaged to the back side of the upper tape fastener 16. The hook member 17 on one side of the upper and lower tape fastener 16 can be engaged to the back side on the other side of upper and lower tape fastener 16. The hook member 17 can be engaged to the back side of a back panel part 15 and the tape fastener 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disposable absorbent article for children, adults or incontinence.

  Conventionally, as a disposable diaper as a disposable absorbent article of this type, a diaper body as an absorbent article body in which a back waist part, a crotch part, and an abdomen waist part are sequentially formed in succession. Loop fasteners are provided on the liquid-impervious back sheet on the back side of the ventral waist of the main body, and side flaps are provided on both side ends of the back waist of the diaper body. Fastener tape having extending portions extending from both side end portions in the width direction of these side flaps is attached, and the fastener fastener is engaged with and disengaged from the loop fastener on the surface side of the extending portion from the back waist portion. A hook fastener is provided for free engagement.

Furthermore, this type of disposable diaper has fastener tapes provided in parallel on both sides of the back body of the diaper main body, and one fastener tape of the fastener tapes is fixed to the diaper main body, In order to be able to engage and fix the other fastener tape on the tape, a target zone to which the fastening means can be attached and detached is provided on the back side opposite to the front side on which the fastening means of each of these fastener tapes is formed. (For example, refer patent document 1).
JP 2004-201894 A

  However, in the disposable diaper, if the engagement area between the fastener tape and the side edge of the side flap is small, the engagement strength between the fastener tape and the side flap is weak, and the fastener tape may come off from the side flap. In addition, there is a problem that it cannot be applied to wearers of various body types.

  The present invention has been made in view of the above problems, and provides a disposable absorbent article that can be applied to wearers of various body types without limiting the engaging position of the tape-shaped fastener at the time of wearing.

  The disposable absorbent article of the invention according to claim 1 has a top sheet positioned on the inner surface side, a back sheet positioned on the outer surface side, and an absorbent body disposed between the top sheet and the back sheet. An absorbent article body in which a back waistline part, a crotch part and an abdomen waistline part are integrally formed in order along the longitudinal direction, and the inner side is provided at both ends of the back waistline part. A back panel portion having an inner panel sheet positioned on the outer surface and an outer panel sheet positioned on the outer surface side is formed, and the back panel portion is positioned on one end side and joined to the back panel portion. A tape-shaped fastener having an end portion and an extending portion located on the other end side and extending outward from the outer edge in the width direction of the back panel portion is disposed, and the tape-shaped fastener and the abdomen side Disposable configured to be detachable by engaging with the waist A hook member is disposed on an inner surface side of the extending portion of the tape-shaped fastener, and an outer surface side of the extending portion is formed to be engageable with the hook member. The panel sheet and the outer panel sheet are formed to be engageable with the hook member, and at least a part of the inner surface side and the outer surface side of the base end portion of the tape-shaped fastener is at least one of the inner panel sheet and the outer panel sheet. The length of the base end portion in the longitudinal direction is longer than the length of the extension portion in the longitudinal direction.

  The disposable absorbent article of the invention according to claim 2 is the disposable absorbent article according to claim 1, wherein the inner panel sheet and the outer panel sheet of the back panel portion have air permeability, and the density of the tape-shaped fastener is: It is larger than the density of the inner panel sheet and the outer panel sheet.

  The disposable absorbent article according to a third aspect of the present invention is the disposable absorbent article according to the first or second aspect, wherein the inner panel sheet has a surface sheet extending outward from the outer edge in the width direction of the absorbent article main body. Formed on the outer surface side of the outer edge of at least the width direction of the back sheet, a back surface non-woven sheet formed of a non-woven fabric is laminated, and the back panel non-woven sheet is formed of the absorbent article body. It is formed by a portion extending outward from the outer edge in the width direction.

  The disposable absorbent article according to a fourth aspect of the present invention is the disposable absorbent article according to any one of the first to third aspects, wherein the base end of the tape-like fastener has an end edge in the longitudinal direction of the base end. It is located between the outer edge of the width direction of this, and the outer edge of the width direction of an absorbent article main body.

  The disposable absorbent article according to claim 5 is the disposable absorbent article according to any one of claims 1 to 3, wherein the back waist portion is formed at one end edge in the longitudinal direction of the absorbent body and extends in the width direction. An absorbent back side end portion along the longitudinal direction of the absorber back side end portion, and a back flap portion formed along the width direction of the absorber back side end portion. It is located on the extension line of the absorber back side end portion along the direction, and the base end portion of the tape-like fastener extends from the back panel portion to the absorbent article main body along the width direction. The one side in the width direction of the base end portion is positioned on the absorber along the width direction, while the other side in the width direction of the base end portion is positioned in the back flap portion along the width direction. It is arranged so as to cover the back side end part, and has at least one of hydrophobic and water repellency Is shall.

  The disposable absorbent article of the invention according to claim 6 is the disposable absorbent article according to any one of claims 1 to 5, wherein a knob is provided at a longitudinal end of the extending part of the tape-shaped fastener, The knob portion extends from the hook member to the outside along the longitudinal direction, and extends from the distal end edge of the extension member toward the opposite side of the hook member. An extension knob extending so as to face the end, and the longitudinal length of each of the hook member and the extension knob is longer than the length of the extension end in the longitudinal direction. is there.

  According to the disposable absorbent article according to claim 1, the tape is attached to the outer surface of the outer panel sheet of the back panel portion or the extending portion of the tape-like fastener disposed on the back panel portion at the time of wearing. Since the hook member disposed on the inner surface side of the extending portion of the hook-shaped fastener can be engaged, the engaging position of the tape-shaped fastener at the time of mounting is not limited, and can be applied to wearers of various sizes and various body types. . Moreover, since the hook member of this tape-shaped fastener can be engaged also with the inner panel sheet | seat of a back side panel part, an extension part can be folded and it can engage with an inner panel sheet | seat at the time of non-mounting, and can be temporarily stopped. Furthermore, since the base end portion having a length in the longitudinal direction longer than the length in the longitudinal direction of the extending portion of the tape-shaped fastener is joined to the back panel portion, these tape-shaped fasteners can be reliably fixed to the back panel portion. These tape-shaped fasteners can be prevented from coming off from the back panel portion.

  According to the disposable absorbent article according to claim 2, the back panel portion has air permeability, and the tensile strength of the back panel portion can be reinforced at the base end portion of the tape-shaped fastener. Air permeability can be improved by reducing the density of the sheet.

  According to the disposable absorbent article according to claim 3, since the inner panel sheet is formed from the top sheet and the outer panel sheet is formed from the back nonwoven fabric sheet, the inner panel sheet and the outer panel sheet are used. Since the back panel portion is integrated with the absorbent article body, it is possible to eliminate the need to join the back panel section to the absorbent article body.

  According to the disposable absorbent article of the fourth aspect, since the length in the longitudinal direction of the base end portion of the tape-shaped fastener can be made longer than the length in the width direction of the back panel portion, it is difficult to pull out the tape-shaped fastener. At the same time, the strength of the back panel portion can be reinforced in the width direction, so that the back panel portion can be prevented from being damaged.

  According to the disposable absorbent article according to claim 5, the back end of the absorbent body can be more closely attached to the body by the base end of the tape-like fastener at the time of wearing, and the base end is either hydrophobic or water repellent. Therefore, it is possible to prevent leakage from the back end of the absorber.

  According to the disposable absorbent article according to claim 6, the length of the hook member and the extension knob in the longitudinal direction is longer than the length of the extension end in the longitudinal direction, so that the tape-like fastener is extended. Easy to pick by part. In addition, since the extended end portion is folded back to the hook member side during mounting, even if the extended end portion and the hook member are engaged, the entire hook member is not covered by the extended end portion. The hook member is less likely to be unusable when attached. Furthermore, since the extended knob extends to the outside in the longitudinal direction of the hook member, the extended knob can be used as a knob.

  Next, the structure of 1st Embodiment of the disposable absorbent article of this invention is demonstrated with reference to FIG.

  In FIG. 1, 1 is a disposable diaper as a disposable absorbent article. This disposable diaper 1 is for children, adults or incontinence, and includes a diaper body 2 as an absorbent article body. The diaper main body 2 includes a surface sheet 3 disposed on the surface side that is the inner surface side when mounted, a back sheet 4 disposed on the back surface side that is the outer surface side when mounted, and the surface sheet 3 and the back sheet 4. It has the absorber 5 which has the liquid absorption property arrange | positioned between.

  Further, the diaper main body 2 joins the peripheral edges of the top sheet 3 and the back sheet 4 to seal the absorbent body 5, and the back waist portion along the longitudinal direction A which is the vertical direction of the diaper main body 2. 6, a crotch part 7 as a leg part and an abdomen waist part 8 are sequentially and integrally formed.

  Further, on both side edges in the width direction B which is the lateral direction of the diaper main body 2, a concave arc-shaped edge 11 which is cut out in a substantially concave arc shape inward so that the middle portion in the longitudinal direction A becomes narrow. Is formed. The diaper main body 2 is substantially elongated in the unfolded state, is formed in a substantially symmetrical shape with the central portion in the longitudinal direction A as the center, and has a symmetrical shape with the central portion in the width direction B as the center. Is formed.

  Next, the top sheet 3 is formed of a liquid-permeable sheet such as cotton cloth, nonwoven fabric, porous film, or synthetic fiber. Further, on the surface side of both side portions of the surface sheet 3 in the width direction B, a hydrophobic sheet 9 as a liquid-impermeable or hydrophobic gather sheet is disposed and attached along the longitudinal direction. A string-like elastic body (not shown) that forms a three-dimensional gather is attached along the longitudinal direction to the opposite inner edges of the hydrophobic sheet 9. That is, a flap projecting in the longitudinal direction A and the width direction B is formed on the peripheral edge of the absorbent body 5 by the hydrophobic sheet 9 and an elastic body (not shown).

  A leg gather 9 a is attached between the hydrophobic sheet 9 and the back sheet 4. The leg gather 9a is attached with a string-like elastic body 10 for erecting the leg gather 9a along the longitudinal direction.

  Here, the hydrophobic sheet 9 can be formed integrally with the surface sheet 3 by extending the surface sheet 3 in the width direction B.

  Further, the back sheet 4 is liquid-impermeable, that is, liquid-impermeable or hydrophobic nonwoven fabric, or a synthetic resin sheet such as polyethylene resin, or a liquid-impermeable or hydrophobic nonwoven fabric and a synthetic resin sheet are combined. It is formed of a sheet or the like, and the peripheral portion of the back sheet 4 is bonded to the peripheral portion of the top sheet 3 or the hydrophobic sheet 9.

  Further, the absorbent body 5 is formed in a substantially elongated rectangular shape with a material that can absorb excretory physiological fluid such as urine, for example, pulp as a main material and a part of the material, such as a polymer absorbent body, and is formed in the longitudinal direction A. A concave arc-shaped edge 12 is formed which is cut out in a substantially concave arc shape inward so that the middle part of both side edges becomes narrow.

  Furthermore, the inner panel sheet 13 positioned on the inner surface side and the outer panel sheet 14 positioned on the outer surface side are laminated at both ends in the width direction B of the back waist portion 6 of the diaper body 2. A back panel portion 15 is provided. The inner panel sheet 13 and the outer panel sheet 14 are formed of a sheet-like material having air permeability and hydrophobicity such as cotton cloth, non-woven fabric, porous film, synthetic fiber, and the like. The inner edge, which is one side edge in the width direction B of the panel sheet 14, is joined in a state of being interposed between the hydrophobic sheet 9 and the back sheet 4 at the back waist part 6 and the abdomen waist part 8. Has been fixed.

  Specifically, the inner panel sheet 13 and the outer panel sheet 14 are portions that are not joined between the inner panel sheet 13 and the outer panel sheet 14 so that the back panel 15 has air permeability. Are substantially joined together by, for example, thermal bonding with a hot melt adhesive or the like. Here, the back panel portion 15 is configured by joining the inner edge of the inner panel sheet 13 and the outer panel sheet 14 in the width direction B to the outer edge of the diaper main body 2 in the width direction B. Alternatively, the hydrophobic sheet 9 and the back sheet 4 themselves may be extended in the width direction B, and may be formed as a sheet integrally continuous with the diaper main body 2. Further, the back panel portion 15 preferably has hydrophobicity or water repellency.

  Further, for example, two tape fasteners 16 and 16 as tape-like fasteners are arranged in parallel with each other and attached to the back panel portion 15. These tape fasteners 16, 16 are formed in an elongated tape shape having a longitudinal direction along the width direction B of the diaper main body 2. Here, the number of the tape fasteners 16, 16 is not limited to two for each back panel portion 15, but may be at least one.

The tape fasteners 16 and 16 have a fiber density, that is, a basis weight [g / m ² ] larger than that of each of the inner panel sheet 13 and the outer panel sheet 14. Further, these tape fasteners 16 and 16 have a relationship in which the length a in the width direction of the tape fasteners 16 and 16 and the length b in the longitudinal direction A of the back panel 15 are 2 × a <b. Preferably, it is formed so as to have a relationship of 2 × a <(b / 2).

  Further, hook members 17 are attached to the front surface side of the tape fasteners 16, 16, and these hook members 17 are engaged with the back sheet 4 of the ventral waist portion 8 of the diaper body 2 by engaging the hook members 17. The disposable diaper 1 can be attached to and detached from the wearer. That is, these hook members 17 are formed so as to be detachably engageable with the top sheet 3, the back sheet 4, the hydrophobic sheet 9, the inner panel sheet 13, and the outer panel sheet 14, respectively.

  In other words, each of the top sheet 3, the back sheet 4, the hydrophobic sheet 9, the inner panel sheet 13, and the outer panel sheet 14 is formed of a sheet-like material with which the hook member 17 can be detachably engaged. . It should be noted that the hook member 17 can be more easily and reliably engaged with the hook sheet 17 on the surface sheet 3, the back sheet 4, the hydrophobic sheet 9, the inner panel sheet 13, and the outer panel sheet 14. A loop member (not shown) that can be combined can also be provided. In this case, the top sheet 3, the back sheet 4, the hydrophobic sheet 9, the inner panel sheet 13, and the outer panel sheet 14 themselves may not be formed of a material that allows the hook member 17 to be detachably engaged.

  Further, the tape fasteners 16 and 16 are made of a material such as a woven fabric or a non-woven fabric, for example, and the tape fasteners 16 and 16 themselves are made of a material that can be engaged with the hook member 17. Further, the tape fasteners 16 and 16 are located on the inner end side which is one end side in the longitudinal direction of the tape fasteners 16 and 16, and are interposed between the inner panel sheet 13 and the outer panel sheet 14 of the back side panel portion 15. It is located on the outer end side that is the other end side in the longitudinal direction of the tape fasteners 16 and 16 and is disposed outward from the outer edge in the width direction B of the back panel portion 15. It has the extended part 19 extended.

  The base end portions 18 of the tape fasteners 16 and 16 are bonded to the inner panel sheet 13 and the outer panel sheet 14, respectively, for example, by using a hot melt adhesive, or by heat bonding, ultrasonic bonding, or the like. It is adhered with. However, the bonding method is not particularly limited. From the viewpoint of securing the bonding strength between the base end portions 18 of the tape fasteners 16 and 16, the inner panel sheet 13 and the outer panel sheet 14, It is preferable that substantially the entire longitudinal direction is bonded to each of the inner panel sheet 13 and the outer panel sheet 14.

  However, if the entire front and back surfaces of the base end 18 of the tape fasteners 16 and 16 are joined to the inner panel sheet 13 and the outer panel sheet 14, the base ends of the tape fasteners 16 and 16 are used. There is a possibility that the joint portion between the portion 18, the inner panel sheet 13, and the outer panel sheet 14 may become air-impermeable, or the back panel portion 15 may become partially hard, resulting in poor wearing feeling. For this reason, the substantially entire area in the longitudinal direction of the base end portion 18 of the tape fasteners 16 and 16 is intermittently spaced with an interval in at least one of the longitudinal direction and the width direction such as stripes and dots. It is preferable to join the base end portion 18 to the inner panel sheet 13 and the outer panel sheet 14.

  The tape fasteners 16 and 16 are formed so that the length in the width direction of the base end portion 18 is longer than the length in the width direction of the extension portion 19. Here, at the front surface side and the back surface side of the base end portion 18 of the tape fasteners 16 and 16, at least a part of the base end portion 18 is attached to at least one of the inner panel sheet 13 and the outer panel sheet 14. It ’s fine. Further, the base end portions 18 of the tape fasteners 16 and 16 are configured so that the longitudinal length of the base end portions 18 is the back panel portion so that the tensile strength of the back panel portion 15 can be reliably reinforced. It is formed in the length substantially the same as the length of 15 width direction B. In other words, it is preferable that these base end portions 18 are provided up to the vicinity of the boundary line between the back panel portion 15 and the diaper body 2.

  The tape fasteners 16 and 16 are attached in a state where the longitudinal direction of the tape fasteners 16 and 16 is parallel to the width direction B of the diaper main body 2. The length is shorter than the length in the width direction B of the back panel 15. Here, since these tape fasteners 16 and 16 have a length in the longitudinal direction shorter than a length in the width direction B of the back side panel portion 15, these tape fasteners 16 and 16 are non-breathable. Even if at least the entire back panel portion 15 is not air-permeable, the tape fasteners 16 and 16 are also vented so that the entire back panel portion 15 has air permeability. It is preferable to have properties.

  Further, a hook member 17 is disposed and joined to the surface side of the extending portion 19 of the tape fasteners 16 and 16. Further, the back surface side of the extending portion 19 of the tape fasteners 16 and 16 is formed of a material that can be engaged with the hook member 17. Here, the hook members 17 are formed such that the lengths in the longitudinal direction of the hook members 17 are shorter than the lengths in the longitudinal direction of the extending portions 19 of the tape fasteners 16 and 16, respectively. Is attached to an intermediate portion in the longitudinal direction of the extending portion 19. A portion of the extending portion 19 that extends outward from a portion to which the hook member 17 is attached becomes a knob portion 21.

  Next, the operation of the disposable absorbent article according to the first embodiment will be described.

  First, in a state where the disposable diaper 1 is not attached to the body, the longitudinal direction A of the diaper main body 2 is changed from the state shown in FIG. 1 so that the top sheet 3 of the diaper main body 2 is inside as shown in FIG. Of the tape fastener 16 attached to the back panel 15 by folding back the back panel 15 provided at both side edges in the width direction B of the diaper body 2 in a state where the tape is folded back into two. The hook member 17 is in a state of being engaged with the back sheet 4 of the ventral waist part 8.

  At this time, since the tape fastener 16 does not protrude from both side edges in the width direction B of the diaper main body 2, the tape fastener 16 does not get in the way and the hook member 17 does not engage with the diaper main body 2 in a delusion.

  In this state, a hook member 17 is engaged with the back sheet 4 of the abdomen waist portion 8 of the diaper body 2 by pulling the knob 21 formed at the tip of the extension 19 of the tape fastener 16. Peel off.

  And when this diaper main body 2 is mounted on the body, the front side of the top sheet 3 of the diaper main body 2 is brought into contact with the skin so that the crotch part 7 of the diaper main body 2 is positioned in the crotch and the back side. The waist part 6 is located on the back side, and the abdomen waist part 8 is located on the abdomen.

  Next, the tape fastener 16 of the back panel 15 attached to both side edges of the diaper body 2 is detachably engaged with the back sheet 4 of the ventral waist part 8 of the diaper body 2. The diaper main body 2 is attached to the body.

  In general, the tape fasteners 16 provided on both side edges of the back waistline portion 6 are engaged with the back sheet 4 of the abdominal waistline portion 8 without overlapping each other. 3, for example, as shown in FIG. 3, the tape fastener 16 engaged with the back sheet 4 of the abdominal waist part 8 is provided at the side edge on the same side. The diaper main body 2 can be attached to the body by stacking the tape fasteners 16 and engaging the hook members 17 of the lower tape fastener 16 with the back side of the upper tape fastener 16.

  Moreover, as shown in FIG. 4, each tape fastener 16 attached to one back panel 15 is overlapped with the tape fastener 16 attached to the other back panel 15, and the upper and lower sides on one side are overlapped. The diaper main body 2 can be attached to the body by engaging the hook members 17 of the upper and lower tape fasteners 16 on the back side of the tape fastener 16.

  That is, the hooks attached to the tape fastener 16 on the back side of the outer panel sheet 14 of the back panel portion 15 and the extending portion 19 of the tape fastener 16 disposed on the back panel portion 15 when mounted. Since the member 17 can be engaged, the engagement position of the tape fastener 16 at the time of wearing is not limited, and can be applied to wearers of various sizes and various body types.

  When the tape fasteners 16 are peeled off from the back surface side of the back sheet 4 or the other tape fasteners 16, the tabs 21 on the front end side of the extending portions 19 of the tape fasteners 16 are picked and the tape fasteners 16 are separated. Since 16 can be peeled off from the back surface side of the back sheet 4 or another tape fastener 16, the attaching and detaching operation of these tape fasteners 16 can be facilitated.

  Furthermore, since each of the inner panel sheet 13 and the outer panel sheet 14 of each back panel portion 15 is made of a material that can be detachably engaged with the hook member 17 of each tape fastener 16, the disposable diaper 1 removed from the body The diaper body 2 is rolled up from the abdomen waist part 8 side, and in this state, the back panel parts 15 of the back waist part 6 are sequentially folded inward and attached to the back panel parts 15. Since the hook member 17 of the tape fastener 16 can be engaged with the outer panel sheet 14, the disposable diaper after use can be folded compactly and kept in that state.

  Further, since the hook members 17 of the tape fasteners 16 can be engaged with the inner panel sheets 13 of the respective back panel portions 15, the extension portions 19 are folded when not attached, and the hook members 17 of the tape fasteners 16 are The inner panel sheet 13 can be engaged and temporarily fixed.

  Further, the back panel 15 has air permeability and the base end 18 of the tape fastener 16 can reinforce the tensile strength of the back panel 15, thereby reducing the weight of the inner panel sheet 13 and the outer panel sheet 14. Thus, the air permeability of the back panel portion 15 can be improved. Therefore, the inside of the diaper main body 2 can be prevented from being steamed at the time of wearing, and the wearing feeling of the disposable diaper 1 can be improved.

  Further, a substantially entire region of the base end portion 18 of each tape fastener 16 is interposed between the inner panel sheet 13 and the outer panel sheet 14 of the back panel portion 15, and the inner panel sheet 13 and the outer panel sheet 14 Since the base end portion 18 of each tape fastener 16 is sandwiched and joined, the tape fastener 16 can be securely fixed to the back panel portion 15, so that these tape fasteners 16 come out of the back panel portion 15. Can be prevented.

  Further, in the first embodiment, as shown in FIG. 2, the base end portion 18 of the tape fastener 16 is sandwiched between the inner panel sheet 13 and the outer panel sheet 14 to form the back panel portion 15, and this back side. Although the inner edges of the inner panel sheet 13 and the outer panel sheet 14 of the panel portion 15 are sandwiched and joined between the hydrophobic sheet 9 and the back sheet 4 of the diaper body 2, the second embodiment shown in FIG. As in the embodiment, the hydrophobic sheet 9 can be extended outward from the outer edge in the width direction B of the diaper body 2, and the extended portion can be used as the inner panel sheet 13. In this case, a back surface nonwoven fabric sheet 31 composed of a nonwoven fabric is laminated on at least the outer surface side of the outside edge in the width direction B of the back surface sheet 4, and the back surface nonwoven fabric sheet 31 is removed from the outside edge in the width direction B of the diaper body 2. The extended portion is referred to as an outer panel sheet 14.

  Further, the hydrophobic sheet 9 constituting the inner panel sheet 13 is a sheet for a three-dimensional gather sheet disposed on both side edges in the width direction B of the top sheet 3. Further, the back sheet 4 is not particularly limited in the number of laminated back sheets 4, but a film-like moisture permeable and liquid impermeable sheet made of polyethylene or the like is positioned on the inner surface side on the absorber 5 side. It is preferable to have a two-layer structure in which the back nonwoven fabric sheet 31 is laminated on the outer surface side which is the clothing surface side of the sheet.

Further, the nonwoven fabric constituting the inner panel sheet 13 and the outer panel sheet 14 is preferably a nonwoven fabric having a low basis weight and high water repellency, for example, a three-layer nonwoven fabric of SMS (spunbond / meltbrain / spunbond). Further, as the inner panel sheet 13, preferably the basis weight of degree 15 g / ^{m 2} or more 20 g / ^{m 2} or less, as the outer panel sheet 14, preferably the basis weight of the extent 13 g / ^{m 2} or more 20 g / ^{m 2} or less.

Further, the inner panel sheet 13 preferably has a higher basis weight than the outer panel sheet 14 because a leakage preventing effect is required when the inner panel sheet 13 is used as a three-dimensional gather. Accordingly, the basis weight of the back panel 15 excluding the portion to which the tape fastener 16 is attached is 28 g / m ² or more and 40 g / m ² or less.

Further, the tape fastener 16 is preferably a spunbonded nonwoven fabric, and preferably has a basis weight of 80 g / m ² or more and 100 g / m ² or less. Therefore, the portion of each back panel 15 where the tape fastener 16, the inner panel sheet 13, and the outer panel sheet 14 are laminated has a basis weight of 108 g / m ² or more and 140 g / m ² or less.

  And since the inner side panel sheet | seat 13 was formed in the hydrophobic sheet | seat 9, and the outer side panel sheet | seat 14 was formed in the back surface nonwoven fabric sheet 31, the back side panel part 15 comprised by these inner side panel sheet | seat 13 and the outer side panel sheet | seat 14 was formed. Since it becomes integral with the diaper main body 2, it is possible to eliminate the need to join these back panel portions 15 to the diaper main body 2.

  Further, in the second embodiment, as shown in FIG. 5, the base end portion 18 of the tape fastener 16 is interposed between the hydrophobic sheet 9 and the back nonwoven fabric sheet 31. As in the third embodiment shown in FIG. 7, the end as an inner edge, which is one end edge in the longitudinal direction, of the base end 18 of the tape fastener 16 is provided between the hydrophobic sheet 9 and the back sheet 4. It can also be interposed. In this case, as shown in FIG. 6, the base end portions 18 of the tape fasteners 16 are such that the end portions of the base end portions 18 and the outer edges of the absorbent body 5 in the width direction B and the diaper main body 2 are seen in plan view. It is attached so as to be positioned between the outer edges in the width direction B.

  Here, when the back surface sheet 4 has a laminated structure with the back surface nonwoven fabric sheet 31, the inner edge that is the end portion of the base end portion 18 of each tape fastener 16 is laminated with the back surface sheet 4 and the back surface nonwoven fabric sheet 31 laminated. It is preferable to arrange so as to be positioned between the hydrophobic sheet 9 and the back sheet 4, not between them.

  And since the inner edge of the base end part 18 of each tape fastener 16 was located between the outer edge of the width direction B of the absorber 5 and the outer edge of the width direction B of the diaper main body 2 in planar view, these tapes Since the length in the longitudinal direction of the base end portion 18 of the fastener 16 can be made longer than the length in the width direction B of the back side panel portion 15, the tape fastener 16 can be further prevented from coming out of the back side panel portion 15. At the same time, since the strength of the back panel portion 15 can be reinforced in the width direction by the base end portion 18 of the tape fastener 16, the damage to the back side panel portion 15 can be prevented.

  Moreover, in the said 3rd Embodiment, as shown in FIG. 6, the inner edge of the base end part 18 of each tape fastener 16 and the outer edge of the width direction B of the absorber 5 and the diaper main body 2 of planar view are shown. Although it is configured to be positioned between the outer edges in the width direction B, as in the fourth embodiment shown in FIGS. The extension portion 19 of the tape fastener 16 is connected to the back side of the absorbent body along the width direction B formed at one end edge in the longitudinal direction A of the absorbent body 5 of the back waist portion 6. It can also be located along the longitudinal direction on the extension line C of the end 32. In this case, a back side flap portion 33 along the width direction B is formed on one end side in the longitudinal direction A of the absorber back side end portion 32 of the back waist portion 6.

  Further, a base end portion 18 of the upper tape fastener 16 is provided so as to extend from the back panel portion 15 to the diaper body 2 along the width direction B, and the base end portion 18 of the tape fastener 16 is provided. One side in the width direction is located on the absorbent body 5 along the width direction B, while the other side in the width direction of the base end portion 18 of the tape fastener 16 is located on the back flap portion 33 along the width direction B. ing. Therefore, the base end portion 18 of the upper tape fastener 16 is disposed so as to cover the absorber back side end portion 32 and has at least one of hydrophobic and water repellency.

  In other words, the upper tape fastener 16 has an absorptive back side end portion 32 in the width direction B between the base end portion 18 of the one side tape fastener 16 and the base end portion 18 of the other side tape fastener 16. It is attached to cover the entire area. That is, the upper tape fastener 16 has a pair of extending portions 19 projecting from the outer edge of the back panel portion 15 at both ends, and a base end portion 18 between the pair of extending portions 19. It is the structure which was made. Therefore, the base end portions 18 of the upper tape fasteners 16 are not integrally connected, and the base end portions 18 of the upper tape fasteners 16 are overlapped with each other. The base end portion 18 can cover substantially the entire width direction of the absorber back side end portion 32.

  As shown in FIG. 8, since the base end portion 18 of the upper pair of tape fasteners 16 covers substantially the entire region in the width direction B of the absorber back side end portion 32, the base of the tape fastener 16 is covered. The end portion 18 allows the absorber back side end portion 32 to be more closely attached to the body when worn. Further, since the proximal end portion 18 of the tape fastener 16 has either hydrophobicity or water repellency, it is possible to prevent the excretion physiological fluid from leaking at the proximal end portion 18, and thus the excretion physiology from the absorber back side end portion 32. Liquid leakage can be prevented.

  Further, as in the fifth embodiment shown in FIG. 10, the base end portions 18 of the upper tape fasteners 16 are not integrally connected, and the end portions of the base end portions 18 of the tape fasteners 16 are not formed. It can also be set as the structure which attaches in the state which mutually opposes by the predetermined space | interval, and covers the substantially whole area of the width direction B of the absorber back side edge part 32 in these base end parts 18. Further, in the fourth and fifth embodiments, the lower tape fastener 16 located on the crotch part 7 side with respect to the upper tape fastener 16 is connected to the proximal end portion 18 of the tape fastener 16. In order not to prevent the absorption of excretion physiological fluid through the surface sheet 3, as shown in FIGS. 8 and 10, the absorbent body 5 is not covered with the proximal end portion 18 of these tape fasteners 16. It is preferable to be provided.

  Then, as in the sixth embodiment shown in FIGS. 11 and 12, a knob portion 21 is provided at the longitudinal end portion of the extending portion 19 of each tape fastener 16, and these knob portions 21 are connected to the hook member 17 as shown in FIG. An extending end 41 extending outward in the longitudinal direction from the leading end of the extending end 41 toward the opposite side of the side where the hook member 17 is located. It is also possible to configure with an extended knob portion 42 that is folded back so as to face the back surface side. The extending portion 19 and the extending end portion 41 of each tape fastener 16 are formed of a flexible material so that they can be restored even if the extending portion 19 and the extending end portion 41 are folded back. It is preferable.

  Further, the hook member 17 and the extended knob portion 42 are formed such that the lengths of the hook member 17 and the extended knob portion 42 in the longitudinal direction are longer than the length of the extended end portion 41 in the longitudinal direction. The extended knobs 42 are formed by joining the extended knobs 42 to the longitudinal end edges of the extended ends 41. As these extended knobs 42, the front end edge in the longitudinal direction of the extended end part 41 is extended, the extended front end edge is folded back, and the folded part is defined as the extended knob part 42. You can also Further, even when these extended knobs 42 are formed by folding, for the purpose of maintaining the folded state of these extended knobs 42, the extension knobs 42 and the extended end portions 41 It is preferable to join a part in the vicinity of the folded portion between them.

  Since the longitudinal lengths of the hook member 17 and the extended knob portion 42 are longer than the length of the extended end portion 41 in the longitudinal direction, the tape fastener 16 can be easily picked by the extended knob portion 42. Further, as shown in FIG. 12, even when the extended end portion 41 is folded back to the hook member 17 side and the extended end portion 41 and the hook member 17 are engaged with each other, as shown in FIG. Is not completely covered by the extended end portion 41, the hook member 17 is unlikely to be unusable at the time of mounting. Furthermore, since the extended knob 42 extends outward in the longitudinal direction of the hook member 17, the extended knob 42 can be used as the knob 21.

It is a top view of the disposable absorbent article which shows the 1st Embodiment of this invention. It is a longitudinal cross-sectional explanatory drawing of the tape fastener of the II line part of FIG. It is a perspective view of one usage aspect of the disposable absorbent article of this invention shown in FIG. It is a perspective view of the other usage condition of the disposable absorbent article of this invention shown in FIG. It is a longitudinal cross-sectional explanatory drawing of the tape fastener of the disposable absorbent article which shows the 2nd Embodiment of this invention. It is a partial top view of the disposable absorbent article which shows the 3rd Embodiment of this invention. It is a longitudinal cross-sectional explanatory drawing of the tape fastener of the II-II line part of FIG. It is a partial top view of the disposable absorbent article which shows the 4th Embodiment of this invention. It is a longitudinal cross-sectional explanatory drawing of the tape fastener of the III-III line part of FIG. It is a partial top view of the disposable absorbent article which shows the 5th Embodiment of this invention. It is a longitudinal cross-sectional explanatory drawing of the tape fastener of the disposable absorbent article which shows the 6th Embodiment of this invention. It is longitudinal cross-sectional explanatory drawing of the usage condition of the tape fastener of the disposable absorbent article of this invention shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disposable diaper as a disposable absorbent article 2 Diaper body as an absorbent article body 3 Top sheet 4 Back sheet 5 Absorber 6 Back waist part 7 Crotch part 8 Abdomen waist part
13 Inside panel sheet
14 Outer panel sheet
15 Back panel
16 Tape fasteners as tape-like fasteners
17 Hook member
18 Base end
19 Extension
21 Pick section
31 Non-woven fabric sheet on the back
32 Absorber back end
33 Back flap
41 Extension end
42 Extension knob C Extension line

Claims (6)

It has a top sheet positioned on the inner surface side, a back sheet positioned on the outer surface side, and an absorbent body disposed between the top sheet and the back sheet. The absorbent article main body in which the lower part and the abdomen waist part are sequentially formed integrally,
At both ends of the back waist portion, a back panel portion having an inner panel sheet positioned on the inner surface side and an outer panel sheet positioned on the outer surface side is formed,
The back panel portion is located on one end side and joined to the back panel portion, and on the other end side and extends outward from the outer edge in the width direction of the back panel portion. A tape-shaped fastener having an extended portion,
A disposable absorbent article configured to be detachable by engagement between the tape-shaped fastener and the ventral waist portion,
A hook member is disposed on the inner surface side of the extending portion of the tape-shaped fastener,
The outer surface side of the extension part is formed to be engageable with the hook member,
The inner panel sheet and the outer panel sheet are formed to be engageable with the hook member,
At least a part of the inner surface side and the outer surface side of the base end portion of the tape-shaped fastener is attached to at least one of the inner panel sheet and the outer panel sheet,
The length of the longitudinal direction of the said base end part is longer than the length of the longitudinal direction of the said extension part. The disposable absorbent article characterized by the above-mentioned. The inner panel sheet and the outer panel sheet of the back panel part are breathable,
The disposable absorbent article according to claim 1, wherein the density of the tape-shaped fastener is larger than the density of the inner panel sheet and the outer panel sheet. The inner panel sheet is formed by a portion in which the surface sheet extends outward from the outer edge in the width direction of the absorbent article body,
On the outer surface side of the outer edge at least in the width direction of the back sheet, a back nonwoven sheet formed of a nonwoven fabric is laminated,
The disposable absorbent article according to claim 1 or 2, wherein the outer panel sheet is formed by a portion in which the back nonwoven fabric sheet extends outward from an outer edge in the width direction of the absorbent article main body. . The base end portion of the tape-like fastener is characterized in that one end edge in the longitudinal direction of the base end portion is located between the outer edge in the width direction of the absorbent body and the outer edge in the width direction of the absorbent article main body. The disposable absorbent article according to any one of claims 1 to 3. The back waist portion is formed at one end edge in the longitudinal direction of the absorbent body and is formed at one end side in the longitudinal direction of the absorbent back side end portion along the width direction, and in the width direction. And a dorsal flap portion along
The extension part of the tape-like fastener is located on the extension line of the absorber back side end part along the longitudinal direction,
A base end portion of the tape-shaped fastener is provided to extend from the back panel portion to the absorbent article main body along the width direction, and one side of the base end portion in the width direction extends along the width direction. The other end in the width direction of the base end portion is positioned on the body so as to be positioned on the back flap portion along the width direction so as to cover the absorber back side end portion, and at least hydrophobic and hydrophobic. The disposable absorbent article according to any one of claims 1 to 3, wherein the disposable absorbent article has any one of water. At the front end in the longitudinal direction of the extending part of the tape-shaped fastener, a knob is provided,
The knob portion extends from the hook member to the outside along the longitudinal direction, and extends from the distal end edge of the extension member toward the opposite side of the hook member. An extended knob extending so as to face the end,
The disposable absorbent article according to any one of claims 1 to 5, wherein a length in a longitudinal direction of each of the hook member and the extended knob is longer than a length in a longitudinal direction of the extended end.

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